.TH tones 1 "20 November 1989"
.SH NAME
tones - play sine-wave tones on the speaker
.SH SYNOPSIS
tones <dhz1> [<dhz2> [<thz> [<rhz>]]]
.SH DESCRIPTION
The SPARCstation's audio chip has four different sine-wave generators:
two "DTMF generators", one "tone generator", and one "tone ringer".
This tool exercises them, using the specified frequencies.
.SH ENVIRONMENT
.nf
SST_PLAY - playback gain, from 0 to 99, default 75
SST_EARPHONES - if set, send output to the earphone jack
.fi
.SH "SEE ALSO"
dial(1), sst(1).
.SH BUGS
Needs a better user interface, for instance to specify tone duration.
.SH AUTHOR
Copyright (C) 1989 by Jef Poskanzer.

Permission to use, copy, modify, and distribute this software and its
documentation for any purpose and without fee is hereby granted, provided
that the above copyright notice appear in all copies and that both that
copyright notice and this permission notice appear in supporting
documentation.  This software is provided "as is" without express or
implied warranty.